Term ends Dec 4, 2026 · High confidence
20-year base term ended Jan 28, 2025
Held by Amgen Inc.
Filed Oct 3, 2006 as application 10/587,705 · Granted Aug 23, 2011
Base term plus 675 days of patent term adjustment (USPTO delay)
Today
2005
2026
Clock starts
Jan 28, 2005
Jan 28, 2005
Term ends
Dec 4, 2026
Dec 4, 2026
Granted
Aug 23, 2011
Aug 23, 2011
base term
patent term adjustment
fee events
Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
675
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 of 3
Maintenance fees paid
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.
2
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
This patent's term runs 675 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. Confidence: High. from the record
How we calculated this date
One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Jan 28, 2005, when application PCT/AU2005/000107, the earliest non-provisional in its chain, was filed (this one was filed Oct 3, 2006) | Jan 28, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +675 days, USPTO patent term adjustment record | Dec 4, 2026 | High confidence |
| Terminal disclaimer cap | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 4, 2026 | High confidence |
This family
| US 8,002,745 | this patent Dec 2026 | Dec 2026 |
1 of 2 applications in this family shown, earliest filings first. The applications whose file history this site holds. The family may have others.
Assignments
Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Jul 22, 2008 Reel 21274, frame 439 | Kaal, Joseph Hermes; Thorley, Craig Stephen; Judd, Damien | Unitract Syringe Pty Ltd. | Assignment of Assignor's Interest |
| Jan 16, 2014 Reel 31986, frame 638 | Unilife Medical Solutions, Inc.; Unitract Syringe Pty Ltd. | Hikma Pharmaceuticals LLC | License |
| Mar 13, 2014 Reel 32446, frame 319 | Unitract Syringe Pty Ltd. | Ros Acquisition Offshore LP | Security Interest |
| Aug 8, 2017 Reel 43482, frame 722 | Unilife Corporation; Unilife Medical Solutions, Inc.; Unitract Syringe Pty Ltd. Acn 101 059 723; Unilife Medical Solutions Pty Limited Acn 008 071 403 | Unl Holdings LLC | Assignment of Assignor's Interest |
| Oct 9, 2025 Reel 73057, frame 641 | Unl Holdings LLC | Amgen Inc. | Assignment of Assignor's Interest |
Sources
Google Patents · The patent document at USPTO · Assignment records at USPTO
USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup
Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Dec 2026
Term ends Dec 4, 2026. No further fees fall due before then
Note
The 675 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
79
later US patents cite this one
That is top 10% of utility patents granted in 2011 in our data, the only group it is compared against.
How we rank
Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.